“99% working order. All keys working on both string and synth section. Sounds great . Tested on headphones as I don’t have an amp and speaker to play it through.
As far as I can tell all knobs and switchs function as they should apart from
The vca eg mode switch in the synth section which is broken and needs replacing
And
The trigger mode switch has a fault in the string section. If you move the switch the sound dies but comes back on if you turn the keyboard off and on.
One slider cap is missing from the cut off frequency slider.
This synth has been dry stored in a bedroom for about 10 years so although it is working apart from the problems stated it would not hurt to service it.
Cosmetically it’s what you see. The plastic ends are good for their age. Three keys have little marks like tiny ciggerette burns and the rear of two keys as shown have what look like burn marks at the back of the keys. ” Link

“The synth is in good cosmetic condition for it’s age apart from the joystick having snapped off at the top, it is still working it just needs extending with some tubing.
This synth is not in fully working condition, it turns on but not all of the dials and sliders work so it is in need of an overhaul.
I will be including a soft carry case with the sale and due to size and weight of the instrument I’ll have to ask that sale of this is collection only. ” Link

“For sale is my vintage Korg Delta Synth from the 70s/80s.
The synth is in good cosmetic condition for it’s age apart from the joystick having snapped off at the top, it is still working it just needs extending with some tubing.
This synth is not in fully working condition, it turns on but not all of the dials and sliders work so it is in need of an overhaul.
I will be including a soft carry case with the sale and due to size and weight of the instrument I’ll have to ask that sale of this is collection only. ” Link

“Korg Delta DL-50 Analog Synth Synthesizer Keyboard Vintage
All the features I could find I tested and worked well.
I am no pro but I got the string section to work and the synth section to work.
The controlls all work well. Individual outs work well.
There are 3 small holes in the top with missing latches but it should not effect anything. 2 rubber feet are missing off the bottom.
The joystick works well but the top part is missing.
LIGHTS WORK.
Comes with Original Dust Cover.
Comes with Yamaha Padded Keyboard Bag.
Good cosmetic shape but not perfect.” Link

“The Korg Delta is an analog semi poly synth. You can get great bass sounds and retro string synths from this easy to use affordable unit.

The synth itself is divided into 2 sections, string and synth. These sections also have individual outputs. There is a noise section included too with a very nice sounding 24db LP filter, which can be switched to HP and BP mode).

This unit works very well for doing classic layering of the synth and string resulting in full sounds. A great piece for your studio or on the road. I confirmed all lights, keys, knobs, joystick and outputs work.

I have owned this since 1983. Some minor scratches (you’ll see initials etched on the bottom), otherwise the piece is in great condition for its age.

Also included is the original Calzone touring case. Lots of cushion inside and sturdy outside. The outside case shows fading from age and several scratches, but the hinges, latches and handle all work perfectly. ” Link

“Korg Delta vintage analog string and organ synthesizer. In great working condition! All knobs and caps, joystick, sliders work great, keys work great. Full polyphony (divide-down), and a really nice filter with lowpass or bandpass option. Separate synth and string sections, with outputs for both combined or separate. White noise generator, joystick for bend and/or filter sweep and modulation. Very cool and eminently playable synth overall… one of Korg’s better ones! Only selling it because I need upgrades elsewhere, so it needs a good new home!

Cosmetically, there’s some plastic broken out of the right side panel, as can be seen in the last photo… doesn’t effect playing at all, and could be swapped out easily if one were to find the part, or I suppose it would be a great candidate for some custom wood sides. No other physical damage and otherwise very clean for such an old synth.

“You are bidding on a Korg Delta synth. Classic synth in very good condition, only thing to note is that the key D in the lower octave has been broken and then repaired. It is hard to spot in the photo, but worth mentioning. Otherwise functionality good and looking good. ” Link

” Super fun analog synth with two sections (strings and synth) that rip out a nice layered sound and fat bass. I’m not a synth expert or tech, but I tested all knobs, sliders, keys and the joystick. Everything works fine as far as I can tell – some pots will need cleaning (a few are crackly) and the strings volume is much louder than the synth section, but it’s easily mixed to nice levels with the sliders. ” Link

“Super fun analog synth with two sections (strings and synth) that rip out a nice layered sound and fat bass. I’m not a synth expert or tech, but I tested all knobs, sliders, keys and the joystick. Everything works fine as far as I can tell – some pots will need cleaning (a few are crackly) and the strings volume is much louder than the synth section, but it’s easily mixed to nice levels with the sliders.” Link

“Korg Delta – 100% working but with minor cosmetic issues including one missing key and 4 slider caps. These are available on eBay. All switches and sliders work. This keyboard is built to last and has a great analog sound. I’m starting at a low cost without a reserve price in consideration of the missing key and knobs.” Link

“Hi! I have today a vintage korg delta i’m listing today. first and foremost its missing some hardware, two knobs, the pitch wheel, several of the faders are bent, and the Synth sections fader has been broken off. along with the envelope seaming to not work, i speculated it to be a compactor being i get absolutely no reaction from it. not to forget all of the rubber tuning caps for VCO pitch E.T.C are missing as well. it plays fine. cosmetically two keys have chips in them, the right side panel has a pretty nice ding in it some screws are missing, and its missing the majority of its components paint. again gain see photos. all around it is a functioning unit.” Link

“Korg Delta polyphonic analogue synthesiser working but requiring repair – all the keys produce sound, but some of the keys only trigger the noise generator.
a couple of the sliders have had the tops snapped off, and the left output seemed to be intermittent.
The synth is usable as it is, but some time with a soldering iron would bring it back to its glory days.” Link

“Used KORG DELTA DL-50 in very good working condition and good cosmetic condition.

The Synthesizer section works properly. The Voltage Controlled Filter works in all combinations of switches, slider and knob ranges giving those sweeping, ‘pew’, ‘chirp’ and ‘ow’ sounds. The bass is very deep and the highs are piercing. The Voltage Control Filter in works the trigger In and Out work.

The Strings sections works properly with all settings.

All keyboard keys work properly, are equally responsive and have the same springiness. All switches work properly. All knobs work the full range and a few are scratchy. All sliders work the full range and some are scratchy. The scratchiness has diminished somewhat as I was testing it. The separate Synth and Strings out works with full volume. The Right channel of the headphones and line out works properly. The Left channel of the headphones and line out are intermittent with physical movement.” Link

“The unit for sale is in perfect working order. All the sliders and pots work with no problems, all keys work, all outputs work, the triggering works, the joystick works and the synth and string section are fully working.

The bad.
It does have lots of cosmetic issues though. Please see the photographs. Of particular note, there is a crack in the LHS end cheek. This is very common with Deltas. There is a chip in the lowest Bb key and other keys are marked. There is a dent in the back of the Delta between the two supports for holding the mains lead, no doubt from being rested on the plug. There are also lots of scratches to the paint.” Link

“Up for auction is this rare Korg Delta DL-50 analog synthesizer. This is a semi polyphonic, analog synth, with a string section. It is similar to the Trident synth. Great strings, leads and basses, and not super complicated!

This synth has been completely gone through, serviced, and is guaranteed to be 100% functional. Everything works great and it sounds awesome!” Link

”
It’s for spares or repair. Its in need of some TLC. It powers on as you can see from the photos but makes some noisy hisses and crackles with some sounds coming out from the synth patch but its definitely not working correctly . The string patch doesn’t seem to function. Most of the switches and nobs function by way of just moving them. The Synth slider slides but has no plastic cap, the KPD follower button is missing and the pitch bender arm is missing but has the base part which moves. One key is cracked as seen

I guess an enthusiast would be able to restore it or someone who wants some spares” Link

“Up for bid is a non-functioning Korg Delta DL-50 analog polyphonic string synthesizer. The keyboard powers on but the sound is mostly white noise. You can faintly hear the notes beneath the static. The joystick is broken off but the nub still functions. It is in fair cosmetic condition with some scuffs and scratches here and there. The bottom shows scratches. Two keys are chipped but it does not affect their functionality. I wish I had the expertise to fix it myself as I’d love to put it to use.” Link

The unit turns on and produce sound, however SYNTHESIZER section has no sound when it is on LOWPASS mode, and only has low output on BANDPASS mode. Also STRINGS section has noise in its sound somehow, and so I’m selling this as is for you to use with some servicing done. Apart from the issues mentioned above, all the functions appear to be working fine, all the keys and knobs and sliders responding as they should.

Cosmetically the unit is in very nice condition as you can see. There are some minor wear and surface marks here and there with one of the slider caps missing as pictured. Very nice cosmetic condition overall. I’m including plenty of pictures so you can see exactly how it looks.” Link

“This listing is for a Korg Delta DL-50 Analog Synthesizer. This synthesizer is in excellent condition, showing some signs of wear due to its age. Some surface scratches are visible on the metal housing of the keyboard (see photos), otherwise the synthesizer is fully functioning and in fantastic condition! This synthesizer comes with a Quik Lok stand, original owner’s manual (manual not pictured and does show some signs of wear), and a zippered, protective carrying case. This particular synthesizer belonged to a musician who took very good care of their belongings and is from a smoke free environment.” Link

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